Sopian, N. D.; Lumowa, S. V.; Masitah, M.; Tindangen, M. The Effect of a Combination of Turmeric Rhizome Extract (Curcuma Longa L.) and Temulawak Rhizome Extract (Curcuma Xanthorrhiza R.) on the Mortality of Grayak Caterpillar Pests (Spodoptera Litura F.). edumaspuljr 2025, 9.